Ernest chapin cole



No. 752,522. PATENTED FEB. 16, 1904. B. C. COLE. ASH DOOR.

APPLICATION FILED OUT. 6, 1903.

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ina 3W No. 752,522. Patented February 16, 1904.

UNITED STATES PATENT OFFICE.

ERNEST CHAPIN COLE, OF CHICAGO, ILLINOIS, ASSIGNOR TO COLE MANU- FACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORAITION.

ASH-DOOR.

SPECIFICATION forming part of Letters Patent No. 752,522, dated February 16, 1904, Application filed October 6, 1903. Serial No. 175,958. No model.)

T Ml M17107! it y OOMOWW cially from Fig. 2, that the knuckle and the Be it known that I, ERNEST CHAPIN CoLE, parts immediately connected therewith are so a citizen of the United States, and a resident remote from the opening a that the latter may of Chicago, in the county of Cook and State of be ground to the desired surface upon an Illinois, have made certain new and useful emery or similar wheel without any abrasion Improvements in Ash-Doors, of which the folof the knuckle A, as will be understood from 5 5 lowing is a specification. dotted lines in Fig. 2, which dotted lines rep- My invention is an improvement in stoves, resent a portion of an emery-wheel in contact and particularly in the construction of the with the open end a of the section A. It is draft or ash-pit door; and the invention has well understood that emery-wheels usually get for an object to provide a novel construction worn a little rounding or irregular at their of connection between the stove-section and outer edges and cannot be relied on to make the cover-section of such door, whereby the a close ground surface to their outer edges, cover-section can be conveniently applied to and it therefore becomes desirable to pro- 5 and removed from the stove-section and will vide for some considerable projection of the be properly hinged in connection therewith emery-wheel beyond the surface to be ground, when applied, and to so construct the parts so the fourteen or eighteen inch circular emery that the fitting or bearing surfaces between can be applied flatwise to the surfaces to be the cover-section and the stove-section can be ground, as indicated in dotted lines, Fig. 2,

0 conveniently ground on emery or other grindwithout coming in contact at its edges with ing wheels to a true surface; and the invenany projecting portions of the construction tion consists in certain novel constructions to be ground. For this reason I avoid the and combinations of parts, as will be hereinprovision of any projection on the section A, after described and claimed. adjacent to the surface a to be ground, so the 2 5 In the drawings, Figure 1 is a perspective latter can be convenientlyground on an emeryview of a portion of a stove provided with my wheel, although the edges of the latter are invention. Fig. 2 is a detail vertical section rounded or irregular, as before referred to. drawn .through the door of the stove. Fig. 3 The knuckle A is of a special construction, is an elevation of the inner side of the joint being arched outwardly at a, forming the re- 3 between the stove-section and the cover-sec cess (0 within it to receive the pintle Z) of the tion with the pintle of the hinge in engagesection or lid B and to permit the operation 0 ment with the stove-section, as in the use of of such pintle, as will be described. The the device. Fig. 4 is an elevation similar to knuckle A is also provided with a vertically- Fig. 3, showing the position of the hinge-pinelongated opening a and at the base thereof 3 5 tle in connecting and disconnecting the two with a ledge or shoulder at at for engagement sections; and Fig. 5 is a plan view of the inby the projecting lug Z) at the middle of the 3 5 ner side of the cover-section. pintle b. The pintle 7) is carried on the arm For convenience of reference I term the B, projecting at one edge of the lid B, and Sections A and B of my invention, respecthe pintle Z) projects equally on the opposite 4 tively, the "stove-section and the coversides of the said arm B and the arm B, and

section, as the former is secured to the body the pintle and its lug 7/ are so formed that the 9 of the stove and the latter operates to close pintle may be passed through the slot a in the opening a in the section A. This section the knuckle A in both inserting and remov- A curves upwardly toward its upper outer end ing the said pintle by turning the pintle to a 45 a, the latter being formed at an incline, so the position diagonal to the length of the slot (0,

coverB will drop and rest thereon by gravity. as shown in Fig. 4:, so the pintle can be read- Above the opening a I provide the section A ily passed through the said slot and then 1 with the knuckle A of the hinge between the turned to the position shown in Figs. 2 and l sections A and B. It will be noticed, espe- 3 to permit it to rock in opening and closing l the lid B. WVhen it is desired to hold the lid open, such lid may be raised to the position shown in Fig. 2 and then lifted to permit its projecting lug b to engage with the shoulder (0 of the knuckle A, when the lid will be supported in the position shown in Fig. 2.

It will be noticed that the arm B projects away from the inner surface C of the section or lid B, and this latter surface C may be ground upon the flat side of an emery-wheel without such wheel coming in contact with the projecting hinge-arm B of the lid, as will be understood from Fig. 2 of the drawings. The lid B may have an opening D, closed by the cap E, the latter being secured by the screw-stud E, turning in the bar E, which crosses the opening D in the lid or section B, as will be understood from Figs. 2 and 5 of the drawings.

It will be noticed that the construction shown avoids the necessity of any hinge-studs close to the surface to be ground and dispenses with any separate hinge-pins. It will also be noticed that the cover may be removed from and applied to the stove section or elbow only by twisting or turning the said lid to a certain position. This interlocking of the lid and body or stove section is important and it will be understood that various other means of securing the same result might be provided, and I do not desire to be limited in this broad feature of my invention to the special construction shown, althoughI prefer to employ the construction shown, as it furnishes a strong frame, that will not easily break in handling and milling and permits the use of a small emery-wheel in bringing the surfaces to the desired shape.

It will be understood that the purpose of the special construction shown is to provide an ash-pit or draft door with projecting surfaces in which both sections can be easilyground to a perfect lit on an ordinary emery-wheel, sufficient space being left between the edges to be ground and the necessary hinge projections to permit the grinding to a perfect lit, as desired. The lid can be lifted for removing ashes, and its weight will allow the lug b to engage with the stove-section and hold the lid elevated, and the lid can be closed by slightly lifting it and permitting it to drop to closed position, as shown in Fig. 1.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The improvement in ash-pit or draft doors for stoves substantially as herein described comprising the body or stove section having an upwardly-inclined elbow portion whose outer or open end is inclined and provided with a hinge-knuckle sufficiently remote from the open end to permit the grinding of the latter without abrading the knuckle portion said knuckle having the outwardly-rounded portion provided with the slot for the pintle and with the shoulder at the base of said slot and the lid or cover-section fitted to the open end of the body-section and provided with the projecting hinge-arm having the pintle and the lug projecting therefrom, said pintle being adapted to fit within and engage with the knuckle of the body-section and to be passed through the slot in said knuckle when shifted to a position diagonal thereto, in applying and removing the lid substantially as and for the purpose set forth.

2. The combination in an ash-pit or draft door with the stove-section having a hingeknuckle provided with a slot for the passage of the pintle and with a recess in rear of said slot for the operation of such pintle, and the lid or cover having the hinge-arm and the pintle thereon, said pintle being formed to engage with the knuckle of the door-section and to be passed through the slot in said knuckle when disposed diagonally thereto in connecting and disconnecting the sections substantially as set forth.

8. The combination in an ash-pit or draft door of the body or stove section having an inlet-opening and a hinge-knuckle having a slot for the passage of the pintle and a shoulder for engagement by the lug thereon, and the lid or door having a pintle to operate in the knuckle of the stove-section and a projecting lug to engage with said section, the knuckle being formed to pass through the slot in the knuckle-section when disposed diagonally thereto substantially as and for the purpose set forth.

. ERNEST CHAPIN COLE. Witnesses:

ALICE CoMs'roeK, H. A. COLE. 

